Lock-nut.



W. 0. PRICE.

' LOCK NUT.

PPLICATION FILED FEB. 24, I917- 1,228, 130. Patented May 29, 1917 v 2 S HEET l- HEETS-S APPLICATIO .24. 1911. 1,228,130. Patented May 29, 1917.

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.UNITED STATES PATENT OFFIGE.

, WILLIAM 0. PRICE: or BEATTYVIIJLE, KENTUCKY.

LOCK-mum.

Specification of Letters Patent.

Patented May 29,1917.

Application filed February 24, 19171- Serial no. 150,757.

I To all'who'm it may con-cm:

Be it known that I, WILLIAM G. P t-Ion, a citizen of the United States, residingat Beattyville, in the county of Lee and State of Kentucky, have invented anew and useful Lock-Nut, of which the following is a specification.

This invention relates to nut locks, one of its'objects being to provide a simple, compact and efficient lock which can be used in connection with rail joints, sucker rods, and

in fact" wherever it is desirable to hold against accidental independent rotation two engaging threaded elements.

A further'object is to provide a nut lock which will not interfere with the unscrewing of the connected parts provided they are subjected to excessive force.

lVith the foregoing and other objects in View which will appear asthe description proceeds, the invention resides in the combination and arrangement 'of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention hereindisclosed, can be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawings the preferred forms of the invention have been shown. I V

In said drawings:

Figure 1 is a vertical transverse section through a rail joint having the present improvements combined therewith.

Fig. 2 is a section on line 2-2 Fig. 1.

Fig. 3 is a section on line 3-3 Fig. 1.

Fig. 4 is an elevation of the nut and showing the locking spring out of normal position.

Fig. 5 is a View partly in section and partly in elevation of portions of a sucker which'is waved or corrugated as indicated at 5 in Fig. 3. Seated in this counter bore is a'split ring 5 preferably formed of spring metal and which is c(')rru;g;ated or waved from one end to the other so that when it is in its normal position it willfi't snuglyag'ainst the corrugated wall of the counter bore as shown in Fig. 3. The nut 6' has a counter bore 7 the wall of which is corrugated or waved as indicated at 8 in Fig. 2, these corrugations coinciding with those in the.

counter bore 4. The width ofthe locking strip or ring 5 is such'that when the nut 6 is in contact with the fish plate 2' said looking ring will project into both counter bores 4t and 7. Obviously by rotating the nut 6 by applying excessive power thereto, the

corrugations in then'ut will slip over the corrugations of the locking ring 5,'thus contracting the ring and causing it to rotate within the counter bore 4. After the nut has been tightened and the corrugationsin the two counter bores brought into register the locking ring will expand so as to fit snugly against the corrugations of the two counter bores, thereby. holding the nut against unscrewing unless subjected to eX- cessive power.

While the improvements are especially usefulin connection with rail joints, they can also be used under other conditions.

For example, where the two sections 9 and 10of a sucker rod are to be fastened together, a counterbore 11 can be provided at the outer end of the threaded bore 12 in section 9 while a recess 13 can be formed in the section 10 around the threaded stud 14 thereon. The walls of the counter bore 11 and recess 13 are corrugated so as to be of the same configuration and a split looking ring 15 which is corrugated and which is similar to the ring 5 is adapted to rest within the counter'bo-re 11 and the recess '13. Thus when the stud 14 is screwed into the bore 12the corrugations in the counter bore 11 and recess 13 will operate to contract the ring and when the two sections of the sucker rod have been brought together with the corrugations matching, then the ring 15 will fit snugly against the corrugations and hold the sections of the sucker rod against separation unless subected to excessive power.

Another form of the invention has been illustrated in Fig. 8 and is designed to be used'where the nut coeperates with a wooden structure. In this modified form, wooden structure has been indicated generally at 16 and is provided at diametrically opposed points with recesses 17 for the reception of lugs 18 extending from one face of a metal washer 19. This washer has its inner wall corrugated to agree with the corrugated wall 21 of a counter bore 22 formed in a nut 23.

' A corrugated split ring 24 of spring material is adapted to fit snugly in the recess 22 and within the washer 19, one edge of this ring bearing against the wooden structure 16. Thus it will be seen that when the nut is screwed onto the bolt 25 the corrugated ring 24 will be contracted within the washer 19 and the counter bore 22 until the nut is brought tightly against the washer and the corrugations in the counter bore and in'the washer come into register. Ring 24 will then fit snugly against both sets of corrugations and hold the nut against rotation relative to the washer unless subjected to excessive power. Obviously the lugs 18 will prevent the washer from rotating about the bolt and relative to the structure 16.

What is claimed is 1. The combination with a structure having a recess provided with a corrugated the wall, and a threaded member extending through the center of the recess, of a member screwed onto the threaded member and having a recess provided with a corrugated and having a recess provided with a cori rugated wall coinciding with the wall in the first named member, and a split spring ring projecting into both members and spaced from the threaded element, said ring being corrugated to conform with the corrugations in the members.

In testimony that I claim the foregoing as my own, I have hereto aflixed my sig1m ture in the presence of two witnesses.

WILLIAM C. PRICE. Witnesses:

T. J. HOWELL, JOHN KENDRIOK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

